Machinery or apparatus for forming or making paper bags.



I J., W. H., G. H. 8; A. DAY. MACHINERY on APPARATUS FOR FORMING 0RMAKING PAPER BAGS.

APPLIGATION .IILED MAY 23, 1903. v 942,7 1 5 Patented Dec. 7, 1909.

9 SHEETS-SHEET 1.

J., W. H., 0.11. & ALDAY. I MAGHINERY 0R APPARATUS FOR FORMING 0B.MAKING PAPER BAGS.

APPLIGATIONIILED MAY 23, 1908. 942,715, Patented Dec.7,1909.

9 SHEETS-811E111 2.

J., W. H., G. -H. & A. DAY. MACHINERY 0R APPARATUS FOR FORMING 0B.MAKING PAPER BAGS.

APPLICATION IILED MAY 23, 1908. 942,71 5, Patented Dec. 7, 1909.

9 $HEETS-SHEET 3.

-J., w. IL, 0. H; a; A. DAY. MACHINERY 0R APPARATUS FOR FORMING 0RMAKING PAPER BAGS.

APPLIOATION FILED HAY 23 1908.

e 8HEBT8-8HBET 4.

Patented Dec.7,1909.

J., W. H., 0. H. & A. DAY. MACHINERY 0R APPARATUS FOR FORMING 0R MAKINGPAPER BAGS.

APPLICATION FILED MAY 23. 1908.

94 K Patented Dec. 7, 1909.

9 SHEETS-SHEET 5.

Fla. 5.

Mari. @411 FIG. 72.

H6141. mm

Era/0; Mag,

J., W. H., G. H. & A. DAY. MACHINERY OR APPARATUS FOR FORMING 0R MAKINGPAPER BAGS.

APPLICATION FILED MAY 23. 1908.

94%,?1 5.. Patented Dec. "2, 1909.

9 SHEETS-SHEET 6.

1., W. 11., c. H. & A. DAY.

. MACHINERY OR APPARATUS FOR FORMING 0R MAKING PAPER BAGS.

APPLICATION FILED MAY 23, 1908.

942,71 5. Patented Dec. 7, 1909.

9 SHEETS-51133137.

FIG.29.

FIG.52 i

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a amvw n... vmnmmm-MFMERS. mmmmm n a J., W. H., 0.3. & A. DAY.

MAGHINERY 0B. APPARATUS FOR FORMING 0R MAKING PAPER BAGS.

. APPLIUATIOH FILED MAY 23. 1908.

Patented Dgc. 7, 1909.

9 SHEETS-SHEET 8.

c Fgzaz l/A Fig a 1/8 1/8 {is A 53% anew. a. GRAHAM cm. Pumn-umnunmgzns.msmuomn, u c.

J., W. 11., G. H. & A. DAY. MACHINERY 0R APPARATUS FOR FORMING 0R MAKINGPAPER APPLICATION FILED MAY 23, 1908. 942,7 1 5, Patented Dec. 7, 1909.9 SHEETS-SHEET 9.

BAGS.

UhlltTFlD %TATE% PATENT @FFIFUE. I

JOB DAY, WILLIAM HENRY DAY, CHARLES HERBERT DAY, AND ALBERT DAY, OFLEEDs, ENGLAND.

MACHINERY OE APPARATUS FOR FORMING 0R MAKING PAPER BAGS.

Specification of Letters Patent.

Patented Dec. "7, 1939.

Application filed May 23, 1908. Serial No. 434,575.

To all whom it may concern:

Be it known that we, J OB DAY, WVILLIAM HENRY DAY, CHARLES HERBERT DAY,and ALBERT DAY, residing, respectively, at 54 Sholebroke avenue,Chapeltown Road, Leeds, in the county of York and Kingdom of England;Beulah House, South Milford, in the said county of York; 22 St. Johnsflerrace, Belle Vue Road, Leeds aforesaid, and 36 Dolph Lane, Leeds,aforesaid, have invented new and useful Improvements in or Relating toMachinery or Apparatus for Forming or Making Paper Bags, of which thefollowing is a specifica tion.

This invention relates to improvements in paper bag forming machines ofthe class in which a sheet of paper after being cut to size is placedover a folding box and wrapped, with the longitudinal edges over oneanother, around one of a series of diagonally divided formers mountedupon an intermittently rotating rising and falling shaft, after whichthe end is folded on to the end of the former in what has been termedeither the rectangular or the square shape, such as are described inUnited States of America patent specification No. 755,754.

The object of the present invention is, first, to provide means forsupplying a plain or printed sheet of paper, or lead or cardboard, whichforms the outside of the bag, to the folding box or mold of the machine,with means for preventing the sheet from adhering to the gummer; second,to provide a suitable gumming apparatus with automatic means appliedthereto so that if a sheet fails to be fed into the required position,the gumming apparatus is thrown out of gear and will not come in contactwith the table; third, means for feeding the inside sheets of plain orordinary paper, or intermediate, such as lead paper, one or both,forming the lining, and placing them in position on the outer paper;fourth, pro viding means for creasing or stiffening the lining which isformed either from rolls or separate sheets; fifth, an arrangement forinsuring of the end of the bag being secured in position by the adhesivematter; and, sixth, the mechanism for creasing, closing, flattening, andcompletely gusseted or selfopening bags.

The above objects are attained by mechanism illustrated in theaccompanying drawings, in which Figure 1. is a front elevation of theentire machine with the improvements forming the subject matter of thisinvention applied; Fig. 2. an elevation of the driving end of themachine; Fig. 3. an elevation of the lining paper feed end of themachine; Fig. 4. a plan looking at the top of Fig. 1; F 5. a partsectional elevation of formers and means for rotating, raising,lowering, and breaking the same; Fig. 6. a plan of the same; Fig. 7. asectional elevation of the upper brake disk; Fig. 8. a plan of the same;Fig. 9. a sectional elevation of the lower brake disks; Fig. 10. a planof the same; Fig. 11. an elevation of a Grover washer for use with thebrake disk; Fig. 12. a plan of the same; Fig. 13. a sectional elevationof lock nut; Fig. 14. a plan of the same; Fig. 15. an elevation of guiderod for lower brake disks; Fig. 16. a front elevation of abottom flapfolding piece; Fig. 17. an end elevation of the same; Fig. 18. a partside elevation showing the means for supply ing a plain or printedoutside sheet of paper to the folding box of the machine; Fig. 19. aplan of the same; Fig. 20. an elevation of reciprocating bar or slidefor conveyer table; Fig. 21. a plan of the same; Fig. 22. an elevationof cam for operating the said slides; Fig. 23. a sectional plan of same;Fig. 24. a part front elevation of gumming apparatus with automaticmeans applied thereto for throwing the same out of action whenever asheet fails to be fed into position; Fig. 25. a plan of the same; Fig.26. an enlarged part elevation showing the outer end of the throwing outlever in action; Fig. 2?. an enlarged elevation of the inner end ofconnecting lever hich acts upon the operating spring; Fig. 28. anenlarged ele vation of operating spring; Fig. 29. a plan of same; Fig.30. an enlarged elevation of the connecting lever; Fig. 31. a plan ofthe same; Fig. 32. an enlarged elevation of the throwing out lever; Fig.33. a plan of the same; Fig. 34. an enlarged elevation of cam foroperating the gumming apparatus; Fig. 35. a sectional elevation of thesame; Fig. a part elevation of the mechanism for supplying the liningpapers to the folding box, drawn to a slightly reduced scale to Figs. 1to 4; Fig. 37. a plan of the same; Fig. 37 is a part plan of liningsheet guide plate; Fig. 37 an end elevation of the same; Fig. 37 a planof the guide plate; Fig. 38. a part elevation of ratchet feed for thesame; Fig. 39. a part elevation of top of the table; Fig. 40. anelevation of reeiproeating feed bar; Fig. 41. a plan of same; Fig. 42.an elevation of cam for operating the reciprocating bars; Fig. 43. asectional elevation of the same; Fig. 44. a part elevation showingapparatus for supplying a lead or intermediate lining to folding box;Fig. 45. a plan of the same; Fig. 46. an elevation of the reciprocatingfeed bar; Fig. 47. a plan of the same; Fig. 48. an elevation of the camfor operating the same; Fig. 49. a sectional elevation of the same.

Like parts are marked with similar letters and numerals of reference inall the views. 4 The framework of the machine comprises a table (amounted upon standards Z), Z), and provided with bearings for thereception of the driving shaft 0, a cam shaft (Z, a vertical shaft 0,and former actuating shaft The standards are connected by stays g, g. Onthe driving shaft is mounted and fixed respectively fast and loosepulleys h, i, and fly wheel The end of the driving shaft is carried bybracket 7c. Z is belt shipping apparatus of any usual and ordinaryconstruction. The driving shaft 0 is connected by spur gearing m to thecam shaft (Z, and the last named shaft is connected by a double spurgearing a, 0, to the shaft f; and the vertical shaft 0 is connected toshaft f by miter gearing On the top of the table a is mounted thefolding box 1", into which. a former s is intermittently passed. Theformers s, say, four in number,are made in two parts to slide one uponthe other, the lower portion forming a part of an arm fixed to the topbrake disk 25 mounted upon the upper end of the vertical. shaft u, towhich a rotary motion is intermittently imparted by a slotted star wheel41 (Figs. and 6) mounted upon the shaft a. An intermittent rotary motionis imparted to shaft a from a pin to fixed pendently to the flange a: ofthe barrel y mounted upon the vertical shaft 6, which is made to engagewith the slot 2 of the wheel '0. A rising and falling motion is impartedto the shaft u from shaft f by means of cam 1, lever 2 mounted upon thedriving shaft 0, adjustable link 3 attached at one end to lever 2, andat its other end to the lug 4 of collar 5 arranged to slide uponvertical shaft u and to act against the underside of the boss of thestar wheel 1;. A second brake disk 6 is mounted loosely on shaft a andrecessed at 7 (Fig. To the brake disk 6 are fixed the pendent guide pins8 which slide in bosses 9 formed on or fixed to the underside of tablea. The guide pins 8 retain the brake disk 6 in position. Between theunder surface of the brake disk 6 and the locknuts 10,--which work onthe screw threaded portion of the shaft u,is mounted what is known as aGrover washer 11 (Figs. 11 and 12) for retaining the brake disks t and.6 in frictional contact with each other.

To each top portion of the formers s is hinged a lever 12 lined withindia rubber on its under surface. The levers 12 are raised by pins 13,14, (Fig. 4) which respectively act upon lug 15 for raising the saidlever for retaining the folded bag around a former s, and for releasingits hold at the point when the ejector forces the bag from a former.

16 is the top flap folder jointed to brackets 17 fixed to the table aand operated by cam 18 on shaft (Z through lever 19 and adjustable link20: 21 is the bottom flap folder jointed to a bracket fixed to the tablea and operated by cam 22 acting upon the link 23 (Fig. 2) and adjustablerod 24. The folders 16 and 21 act against the ends of the formers. Theabove named parts are of av similar construction to those usuallyemployed in this class of bag forming machine, and work in a likemanner.

25 is a table (Figs. 1 to 4, 18 and 19) which receives the printed orother sheets of paper, or lead, or cardboard,all of which arehereinafter termed and included in the term the outside sheet,which isemployed to form the outside of the bag. The outside sheet is suppliedto the folding box 1" of the machine either in single sheets fed theretoby hand, or by any other suitable automatic arrangement. The just namedtable is hereafter termed the conveyer table 25, and it is divided intostepped sections 26 on different levels (Fig. 18). That is to say,instead of making the upper surface of the conveyer table on one levelfrom end to end, its length is divided up into a series of sections,each section being on a different level, so as to prevent an outsidesheet being drawn backward by the mechanism that causes it to bepropelled along the table. The sides 27 of the conveyer table are madeof either angle or T-iron, and they may or may not bev let into recessesin the conveyer table where necessary. In the drawings the sides 27 arefixed to the top of the table. One or both of the sides of the table 25is or are made adjustable if so required. In the stepped portion of theconveyer table is cut one or more grooves, say, for example, two grooves28 which are continuous throughout the length of the several steppedsections. In each of the grooves 28 is arranged to work a reciprocatingbar or slide 29 (Fig. 20). The bars 29 are arranged to work in plateguides 30 fixed to the underside of the conveyer table.

A reciprocating motion is imparted to the bars 29 by means of spur racks31 fixed to the underside of the center of the said bars and arranged tomesh with a spur pinion 32 mounted in the end of an adjustable link 33which is attached to the end of lever 34 fulcrumed at 35 on one of thestay rods g. The spur pinion 32 also engages with a stationary rack 36fixed to the table a. An oscillating movement is imparted to the lever34 by cam 37 mounted upon the driving shaft 0. As the spur pinion 32 isdrawn backward and forward by the end of lever 34 and link 33 along thefixed rack 36., a rotary motion is imparted to the pinion, and by itsengagement with the rack 31 fixed to the bar 29 an intermittentreciprocating motion is thereby imparted to the latter.

On the upper surfaces of the bars 29 are mounted projections, hereaftertermed pushers 38 (Figs. 20 and 21) of any suitable shape, say, two ormore pushers for each section of the conveyer table. The pushers 38 arearranged to project above the level of the stepped portion of eachsection of the conveyer table 25. The pushers 38 are so constructed thata space 39 is left between the level of the table and the underside of aprojecting or overhanging part 40 of each pusher. The overhanging part40 forms what may be termed a longitudinal pin for preventing theoutside sheet from rising when being propelled forward by the mainportion of the pusher. Any number of pushers, say for example, two, maybe provided for each section of the conveyer table, and the pusherismade to taper at its back so as to form at its rear no obstruction tothe paper that is to be conveyed to the folding box 1.

In the vertical portion of each step 26 is also arranged one or morepins 41 (Figs. 18 and 19) for preventing the outside paper re.- turningafter being moved forward on to the upper step which is toward the rearof the conveyer table. These last named pins 41 are arranged at asuitable distance apart as well as from the level of the step over whichthey project. The outside sheet, after it has been carried forward byone set of pushers 38, drops on to the succeeding and lower step 26 intoposition for being acted upon by the pushers in each step until it hasbeen carried over the folding box '2 of the machine.

At or near the last or other step of the conveyer table, say, the onenearest to the folding box 7", is arranged what is termed a slottedpresser plate 42 (Figs. 18 and 19) which is employed for separating thesheet from the gumming pad. The presser plate 42 is attached to avertical lifting rod 43 working in bracket 44 fixed to table a. The rod43 receives an intermittent reciprocating motion, say, by a cam 45mounted upon shaft (Z. The presser plate is also employed for holdingthe outside sheet in position before the gumming apparatus is broughtdown upon the same. The plate 42 is recessed at 46, 47, and 48, forgumming purposes, and it is also provided with a slot hole 49 for purposes to be presently described.

The gummer 50 (Fi gs. 24 and 25) is made of any required shape forapplying the gum or mucilage to the outside sheet to be formed into thebag at a suitable distance from its longitudinal fold. The gummer ismounted in a vertical reciprocating framework 51 carried by thesupporting rods 52 which slide in bracket 53 fixed to the table a, andthe gummer 50 is also arranged so that it can also slide horizontallyacross the conveyer table 25.

The required motion for first raising the framework 51 before moving thegummer 50 across the table 25 is obtained by means of a cam 54 mountedupon shaft 55. The cam 54 acts upon a runner 56 mounted in a cross bar57 fixed to the lower ends of the vertical rods 52, thereby raising theframework 51. To carry the gummer 50 across table 25 after the gummerhas been raised by cam 54, the forked end 58,which also acts as aguide,-of a vertical rod 59, is operated by a cam 60 mounted upon theshaft 0, which passes between the prongs of the forked end 58. To therod 59 is fixed a boss 61 which is jointed to the shorter arm of abell-crank lever 62 fulcrumed to stay 63 of the lining sheet framework.The upper end of the bell-crank lever is attached to a link 64 carryingat its outer end a spur pinion 65 arranged to mesh with a rack 66 fixedto the framework 51, and with a second rack 67 fixed to a slide 68 towhich the gummer 50 is attached. On motion being imparted to the cam 60,the vertical rod 59 will be raised, and simultaneously motion will beimparted by boss 61,connected to rod 59,

to the shorter arm of the bell-crank lever 62, causing its upper end tomove outward, thereby drawing the link 64 and pinion 65 along rack 67,whereby a rotary motion is imparted to the pinion for causing it, bymeans of rack 66, to move the slide 68 and gummer 50 attached thereto,inward.

As the gummer 50 moves horizontally inward, it travels over the gumwheels 69,- with plain or grooved peripheries and with or without acovering of india rubber or other suitable material.,mounted on a shaftcarried in suitable hearings in the ends of the gum box 70, fixed to thetable a. A rotary motion is imparted to the gum rollers 69 from shaft 55by means of pulleys 71., 7 2, and cross-belt 73. The rollers 69 raisethe gum or other liquid mucilage by their peripheries from the box 70 tothe portions 7-4 and 7 5 of the gummer 50. The portions 74 and 75respectively gum the outside sheet along one of its longitudinal edges,and also a portion of its surface for attaching a lin- Cir &

ing sheet to it. The gummer is also recessed at 7 6, 77, for the passageof the vertieal rods 52.

On the last section of the stepped conveyer table is formed alongitudinal slot or recess 78 in which is placed and secured a flatbent spring or hinged plate, hereafter termed a spring finger 79 (Figs.28 and 29) of any suitable and convenient shape. The free end of thespring finger 79 is made to project above the level of the conveyertable and to act upon a lever 80 (Fig. 80) which is fulcrumed at orabout its center to the table aof the machine. The lever 80 works at orabout a right angle to the conveyer table 25. The inner end of lever 80is bent upward, or a spring may be ointed to this end of the said leverif so desired. The lever is also turned up at its outer end, and it ismade to engage with or act upon an enlarged loop ended lever 81 jointedto the bracket The lever 81 acts an automatic stop by passing its loopend between the upper side of the bracket 58 and lower surface of a boss82 on the framework 51, thereby preventing the gummer acting upon thesurface of the conveyor table 25 whenever an outside sheet has failed tobe delivered thereon. The enlarged loop portion of lever 81 is bent orturned at or about a right angle to the weighted or other part 88 thatis acted upon by the outer end of lever 80, as shown at Fig. 2G. Thespring finger 79 is arranged to pass through the slot 78 in the presserplate 12, and when an outside sheet has been carried over it and thepresser plate has descended on to the section of the conveyer table, thepressure of the plate on the outside sheet is sufiicient to depress theinner end of lever 80 and to cause its outer end to act upon theautomatic stop lever 81 for moving outward and from between brackets 53and boss- 82, so as to allow the gummer 50 to be brought down. on to theoutside sheet that is on the said table.

In the front of the last section of the conveyer table 25 is jointed alever or finger 84 (Fig. 18)jointed to the underside of table 25. Thefinger is employed for pressing the outside sheet to be gummed againstthe vertical projection or stop 26 of the section so as to insure of thesheet being gummed in the proper position. The said finger 84 isoperated by cam 85, mounted upon shaft f, being made to act upon a lever86 fulcrumed upon a stay g. The presser plate -12 also retains the sheetof paper in position during the withdrawal of the gumming apparatus.

For supplying the inside or lining sheets, which are slightly smaller insize than the outside sheets.-over the folding box 1" of the machine,after the outside sheet or covering of the bag has been placed inposition, the lining sheets are cut off in lengths from a continuousroll of paper 87 ,mounted upon a shaft 88 carried in bearings orframework 89,by a guillotine 90 placed at the rear of a second table 91which is arranged at or about a right angle to the conveyer table 25, asshown at Figs. 86 and 37. If

desired sheets that have been previously cut to the required size may beused in place of cutting them from a roll. The paper from the roll 87 iscarried over spring tensioned roller 92,mounted in lever 93 fulcrumed toframework 89,to roller 94L carried in bearings on bracket 95. Therequired tension is imparted to the paper by means of friction roller 96also carried by said bracket. Be tween the roller 94 and the guillotine90 the paper is made to pass over a flat table 97. A brake 98 consistingof a double ended weighted lever is employed for preventing the paperbeing drawn off the roll too quickly. The roll 87 is adjusted to therequired position by the hand wheel 99 acting upon the grooved wheel 100mounted upon the paper roller shaft 88. The roll 87 is intermittentlyrotated for letting off the paper by means of a ratchet wheel 101 (Figs.37 and 88) by pawls 102 mounted in a carrier 103 fixed to a disk 104mounted loosely upon shaft 105, upon which roller 94; is mounted. Anintermittent oscillating motion is imparted to the disk lOt by a rod 106attached to crank 107 fixed to shaft 108. A rotary motion is imparted toshaft 108 from shaft by means of spur gearing 109, Fig. 3. The shaftreceives a rotary motion from shaft (Z through skew or spiral gearing110.

For taking out the curl or for stiffening the lining paper formed fromthe rolls or sheets, the upper surface of the table 97,- or a wooden orother block to be inserted therein,--is provided with one or more crossshaped or other recesses 111 therein to crease the paper which stiffensit. A plate 112 is provided on its under surface with one or moreprojections adapted to fit into the recesses in the surface of the tableor block therein. The plate is attached to a suitable rod 113 capable ofreceiving an intermittent vertical reciprocating motion from a cam 114mounted upon shaft 108. The lower end of rod 113 is attached to a lever115 fulcrumed to framework89. After the sheet has been creased, it israised out of the recesses in the table 97 by any suitable arrangementof fiat or other springs 116 fixed to the table. When the creased sheethas been raised from the said recesses it is conveyed to the guillotineknife 90, when used, and then to the folding boX 1" of the machine. Thesaid creasing arrangement is arranged at a suitable distance at the rearof the knife, when such cutting apparatus is used.

The table 91 thatreceives the paper as it is cut to size by and dropsfrom the guillotine 90,or which receives the sheets of paper that havebeen previously cut to size,

is provided with one or more longitudinal grooves 117two grooves areshown in the drawingsin which are made to reciprocate bars or carriers118 of a similar construction to the bars 29 which work in the sectionsof the conveyer table 25. The bars 118 (Fig. 40) are provided withsimilar projections 119 to the pushers 38.

To the bars 118 (Figs. 37 to 37) are fixed two brass plates to formguides 118 and 118 The guide 118 is provided with a projection 118 onits surface for a portion of its length for retaining the lining sheetin position. In the guide 118 is also formed a groove 118 for thereception of the spring finger 126.

An intermittent reciprocating motion is imparted to the bars 118 by cam120 mounted on shaft 108 through lever 121,fulcrumed to framework89,adjustable links 122, sliding cross piece l23mounted upon the guiderod 124to which the turned down ends 125 of the bars 118 are secured.

To the top of the table 91 is fixed one or more, say, two, spring orother fingers 126 with enlarged or turned down ends. The fingers 126 areinclined toward the folding box 1' and they are employed for retainingthe lining sheet in its proper position and at the required distancefrom the edge of the sheet forming the outer portion of the bag. Theenlarged or turned down ends of the stationary spring fingers 126 form astop for preventing the lining sheet from returning with the bars 118and their projecting pushers 119 when the bars are withdrawn within thetable 91 from the folding box or mold of the machine after a liningsheet has passed over the fingers. The spring or other fingers may ormay not have projections on or be grooved as required. A spring finger127 is fixed to the knife 90 and it is employed for keeping the liningsheet down in position after it has been cut off by the guillotine. Asthe lining sheet is carried over the fingers 126 by the bars 118 andpushers 119, it is passed into the guide 128 fixed to the top of thefolding box 1. When it is desired to insert a second or intermediatelining, say, of lead paper, hereinafter termed the intermediate liningsheet, a third conveyer table 130 is employed (Figs. 44 and 15) which isof a similar construction to that shown and described for the outsidesheet, only in this instance it is provided with one step. In the tableare formed two longitudinal grooves in which are made to slide the bars131 provided with projections 132. The bars and their projections are ofa similar construction to the bars 29 and pushers 38. An intermittentreciprocating motion is imparted to the bars 131 and projections 132 bya cam 133 mounted upon shaft f through lever 13 1,fulcrumed to bracket135 fixed to the framework Z),-link 136 connected to the pendent bar137, to the upper end of which the bars 131 are fixed. The table 130 isfixed to table a, but on one side of table 91, so that the intermediatelining is first delivered on to the last named table prior to the liningsheet being deposited thereon. Both the intermediate and the liningsheets are afterward carried together over the folding box 1" by bars118 and pushers 119 and deposited upon the outside sheet which haspreviously been carried and deposited over the folding box by the bars29 and pushers 38. The sheets are then in a position to be acted upon bythe formers s, that is to say, at point 1 11 the sheets are wrappedaround a former s in the folding box 1. Afterward the formers are raisedand rotated to position 138 where the ends of the bag are formed andfolded. The formers are then again raised and rotated to position 139where the ends of the bag are wiped prior to the formers being raisedand rotated to position 1 10 for being ejected from the former by theforked ejector 142 which is actuated by cam 143 mounted on shaft fthrough lever 141-11; fulcrumed to a cross bar 141-5 fixed to the staysg. The upper end of lever 1 1% is at tached by link 1416 to a slidingbar 1 17,- carried in bearings 1418 on the underside of the table a,fixed to the ejector 14:2.

The action of the apparatus is as follows :-A sheet of paper having beenplaced upon the conveyer table 25, it is moved along its stepped surfaceby bars 29 and pushers 38 until it is brought under the separator plate12, where it is held in a position for being acted upon by the gummer50. After the outside sheet has been gummed it is then passed over thefolding box 9". Simultaneously with this movement of the outer sheettaking place, the lining sheet, with or without an intermediate liningof lead paper, is first cut off the roll of paper, straightened by beingpassed under the creaser plate 112, when it is passed on to the top ofthe folding box over the outside sheet, to be there acted upon by theformer which first carries the sheets of paper into the box, and thesheets of paper are afterward'caused to be wrapped around the formersand the gummed portions of the outer part secured together by beingbrought under the flap 12. The ends of the bags are then successivelycreased, formed, and folded, as the formers pass respectively into thepositions 138, 139, and 1 10. From the latter position it is ejectedfrom the former.

We claim 1. In a paper bag forming machine, the combination of the tableof the machine having a folding box thereon, of a conveyer table fixedtransversely upon the table of the machine, said conveyer table beingprovided with projecting sides and divided into stepped sections ofdifferent levels, and having a pair of parallel and continuous groovestherein, a pair of bars reciprocating respectively in said grooves, apair of projecting pushers for each stepped section fixed respectivelyto each of the said bars, each pair of pushers being of a differentheight to suit its section and inclined on their tops and recessed attheir front portions and means for intermittently reciprocating the saidbars andthe pushers of each of the said sections simultaneously, and aprojection fixed to the vertical portion of each step of the conveyertable for preventing a sheet of paper returning with the bars andpushers.

2. The combination of the table of the machine having a folding boxfixed thereon and a conveyer table fixed transversely upon the table ofthe machine, said conveyer table being provided with projecting sidesand divided into stepped sections of different levels and having a pairof parallel and continuous grooves therein, a pair of bars reciprocatingrespectively in the said grooves, a pair of projecting pushers for eachsection fixed respectively to each of the said bars, each pair ofpushers being of a different height to suit its stepped section andinclined on their tops and recessed at their front portions, and meansfor intermittently reciprocating the said bars and pushers of eachsection simultaneously, a projection fixed to the vertical portion ofeach step of the conveyer table for preventing a sheet of paperreturning with the bars and pushers, a lever jointed to the end of theconveyer table for pressing the sheets of paper backward, means forintermittently moving the last named lever in and out of position, aperforated plate arranged over a section of the conveyer table forclamping the paper down on to the surface of the said table, a verticalrod upon which the said clamping plate is mounted, means forintermittently reciprocating the said plate and its vertical rod and astop for preventing the perforated plate coming in contact with thetable when no sheet of paper is in position.

The combination. of the table of the machine having a folding box fixedthereon and a conveyer table fixed transversely upon the table of themachine, said conveyer table being provided with projecting sides anddivided into stepped sections of different levels and having a pair ofparallel and continuous grooves therein, a pair of bars reciprocatingrespectively in the said grooves, a pair of projecting pushers for eachsection fixed respectively to each of the said bars, each pair ofpushers being of a different height to suit its stepped section andinclined on their tops and recessed at their front portions, and meansfor intermittently reciprocating the said bars and pushers of eachsection simultaneously, a projection fixed to the vertical portion ofeach step of the conveyer table for preventing a sheet of paperreturningwith the bars and pushers, a spring working in a slot in the conveyertable, a gum box fixed upon the first named table on one side of theconveyer table, rollers rotating in the gum box and means for rotatingthe same, framework made to rise and fall, gumming apparatus mountedupon the said framework so as to be capable of being horizontallyreciprocated over the gum box and its rollers and the slotted plates,means for operating the gumming apparatus and stop mechanism forpreventing the gummer coming in contact with the table when no sheet ofpaper is in position.

The combination of the table of the machine, a stepped grooved andslotted conveyer table, bars provided with projecting pushersreciprocating therein and means for intermittentlyreciprocating thesame, horizontal projections fixed to the steps of the conveyer table,for preventing the return of a sheet to the preceding step, a springfixed in the slot of the conveyer table, a slotted plate for pressingthe sheet on to the table and thereby depressing said spring, means forcausing the said plate to intermittently rise and fall, a gum boxmounted on the table of the machine, rollers revolving in said gum box,means for rotating said rollers, a horizontally reciprocated slide, agummer mounted in said slide, a rising and falling carrier in which saidgummer slide is mounted, means for intermittently reciprocating thegummer slide and causing its carrier to rise and fall, a lever fulcrumedto the underside of the machine, said lever being bent at one end toengage with said spring, a weighted loop lever jointed to its oppositeend to form a stop for preventing the gummer coming in contact with thetable when there is no sheet in position to be gummed, as set forth.

5. The combination with the table of the machine and with a steppedconveyer table provided with means for conveying a sheet from step tostep, of a flat spring fixed in a central opening in the conveyer table,a rising and falling conveyer, a slotted plate fixed to said carrier forholding a sheet in position for acting upon said spring, means foroperating the said carrier, a double ended lever fulcrumed to the tableof the machine belt at one end to engage with the said spring, and aweighted looped stop lever jointed to the end spring. K

6. The combination with the table of the machine and with a stepped andrecessed table provided with reciprocating bars and pushers and meansfor actuating the same, a roll of paper and means for braking androtating the same, of a pair of rollers for drawing the paper forward, acreaser plate mounted in a vertical reciprocating carrier and providedwith project-ions for pressing the paper into the recesses of the table,means for actuating the creaser plate, and raising the paper out of thesaid recesses, a guillotine for cutting off lengths of paper from theroll, means for operating the guillotine, a spring fixed to theguillotine for retaining the cut sheet in position, and guides providedwith projections and spring fingers, said guides being fixed to thereciprocating bars, as set forth.

7. The combination of the stopped and re cessed table provided withreciprocating bars and pushers, and means for actuating the same, of acreaser plate mounted in a vertical reciprocating carrier and providedwith projections for pressing the paper into the table, means foroperating said creaser plate and guides provided with projections andspring fingers, said guides being fixed to the reciprocating bars, asset forth.

8, The combination with the table of the machine mounted upon frameworkand having a folding box mounted thereon, a stepped, grooved, andperforated conveyor table provided with means for conveying the outsidesheet to the folding box, a series of rising and falling formers andmeans for intermittingly rotating the same, each of said formers beingdiagonally divided a second stepped table arranged at a right angle tothe conveyer table and provided with means for cutting ed a sheet ofpaper from a roll and creasing it and conveying it to the folding box,and a third stepped table arranged opposite to the conveyer table andprovided with means for conveying a second lining sheet to anddepositing it upon the folding box, a gum box mounted on the frameworkof the machine having rollers rotating therein and means for actuatingthe same, a rising and falling carrier, a guminer fixed to ahorizontally reciprocating slide mounted in said rising and fallingcarrier and means for operating the same, a rising and falling clampingcarrier, a slot ted plate fixed to said last named rising and fallingcarrier over the eonveyer table for clamping the outside sheet down onto the table, a spring fixed in a recess in the conveyer table, a doubleended lever fulcrumed to the underside of the table of the machine andbent at one end to engage with said spring, and a stop jointed to theother end of the lever for preventing the gummer being brought intocontact with the table when there is no sheet in position to be guinmed.

JOB DAY.

*WILLTAM HENRY DAY.

CHARLES HERBERT DAY.

ALBERT DAY.

WVitnesses LEWIS DEXTER, C. E. TAYLOR.

